package com.uchedao.vehicledetection.activity;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Handler;
import android.os.Vibrator;
import android.text.TextUtils;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.uchedao.vehicledetection.R;
import com.uchedao.vehicledetection.view.widget.ui.camera.CameraManager;
import com.uchedao.vehicledetection.view.widget.ui.decoding.CaptureActivityHandler;
import com.uchedao.vehicledetection.view.widget.ui.decoding.InactivityTimer;
import com.uchedao.vehicledetection.view.widget.ui.view.ViewfinderView;

import java.io.IOException;
import java.util.Vector;

public class CaptureActivity extends CJDBaseActivity implements Callback {
    private CaptureActivityHandler handler;
    private ViewfinderView viewfinderView;
    private boolean hasSurface;
    private Vector<BarcodeFormat> decodeFormats;
    private String characterSet;
    private InactivityTimer inactivityTimer;
    private MediaPlayer mediaPlayer;
    private boolean playBeep;
    private static final float BEEP_VOLUME = 0.10f;
    private boolean vibrate;

    private Button btnBack;


    @Override
    protected String getActivityTag() {
        return "CaptureActivity";
    }

    @Override
    protected int getLayoutResID() {
        return R.layout.activity_capture_view;
    }

    @Override
    protected void initView() {
        setContentView(R.layout.activity_capture_view);
        CameraManager.init(getApplication());
        viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);

        btnBack = (Button) findViewById(R.id.btn_back);
    }

    @Override
    protected void initData() {
        hasSurface = false;
        inactivityTimer = new InactivityTimer(this);
    }

    @Override
    protected void initListener() {
        btnBack.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        if (hasSurface) {
            initCamera(surfaceHolder);
        } else {
            surfaceHolder.addCallback(this);
            surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        }
        decodeFormats = null;
        characterSet = null;

        playBeep = true;
        AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
        if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
            playBeep = false;
        }
        initBeepSound();
        vibrate = true;
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (handler != null) {
            handler.quitSynchronously();
            handler = null;
        }
        CameraManager.get().closeDriver();
    }

    @Override
    protected void onDestroy() {
        inactivityTimer.shutdown();
        super.onDestroy();
    }

    private void initCamera(SurfaceHolder surfaceHolder) {
        try {
            CameraManager.get().openDriver(surfaceHolder);
        } catch (IOException ioe) {
            finish();
            return;
        } catch (Exception e) {
            finish();
            return;
        }
        if (handler == null) {
            handler = new CaptureActivityHandler(CaptureActivity.this, decodeFormats, characterSet);
        }
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        if (!hasSurface) {
            hasSurface = true;
            initCamera(holder);
        }

    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        hasSurface = false;

    }

    public ViewfinderView getViewfinderView() {
        return viewfinderView;
    }

    public Handler getHandler() {
        return handler;
    }

    public void drawViewfinder() {
        viewfinderView.drawViewfinder();

    }

    public void handleDecode(final Result obj, Bitmap barcode) {
       /* System.out.println("QR code : " + obj.getText());

		inactivityTimer.onActivity();
		playBeepSoundAndVibrate();*/
        String result = obj.getText();
        if (!TextUtils.isEmpty(result)) {
            Intent intent = new Intent();
            intent.putExtra("scan_result", obj.getText());
            setResult(RESULT_OK, intent);
        } else {
            setResult(RESULT_CANCELED);
        }
        finish();
    }

    public void showQRCodeInfoDlg(final String accNo, final String name, final String amount) {
        StringBuffer sb = new StringBuffer();
        sb.append("1").append(": ").append(accNo).append('\n');
        sb.append("2").append(": ").append(name).append('\n');
        sb.append("3").append(": ").append(amount);

        AlertDialog.Builder dialog = new AlertDialog.Builder(this);
        dialog.setCancelable(false);
        dialog.setMessage(sb);
        dialog.setNegativeButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                /*Intent intent = new Intent(CaptureActivity.this, TransferInnerBank1Activity.class);
                intent.putExtra("accNo", accNo);
                intent.putExtra("name", name);
                intent.putExtra("amount", amount);
                startActivity(intent);
                finish();*/
            }
        });
        dialog.setPositiveButton("确定1", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                finish();
            }
        });
        dialog.create().show();
    }

    private void initBeepSound() {
		/*if (playBeep && mediaPlayer == null)
		{
			// The volume on STREAM_SYSTEM is not adjustable, and users found it
			// too loud,
			// so we now play on the music stream.
			setVolumeControlStream(AudioManager.STREAM_MUSIC);
			mediaPlayer = new MediaPlayer();
			mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mediaPlayer.setOnCompletionListener(beepListener);

			AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep);
			try
			{
				mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
				file.close();
				mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
				mediaPlayer.prepare();
			}
			catch (IOException e)
			{
				mediaPlayer = null;
			}
		}*/
    }

    private static final long VIBRATE_DURATION = 200L;

    private void playBeepSoundAndVibrate() {
        if (playBeep && mediaPlayer != null) {
            mediaPlayer.start();
        }
        if (vibrate) {
            Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
            vibrator.vibrate(VIBRATE_DURATION);
        }
    }

    /**
     * When the beep has finished playing, rewind to queue up another one.
     */
    private final OnCompletionListener beepListener = new OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.seekTo(0);
        }
    };

}